Quasi-Two-Dimensional Optical Confinement in a Cholesteric Liquid Crystal Infiltrated Optical Fiber
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概要
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We investigate cholesteric liquid crystal (CLC) orientation in a hollow fiber by microscopic observation and reflection spectrum measurement. The existence of a helical structure in the fiber is confirmed by comparing the reflection spectra of the CLC in the fiber with those of the CLC in a sandwich cell. The results of reflection measurement and microscopic observation indicate that the CLC helix is oriented concentrically in the fiber. Finite-difference time-domain (FDTD) simulation results also support the experimental results. The concentrically oriented CLC can be regarded as a quasi-two-dimensional photonic crystal despite its one-dimensional CLC helix. Two-dimensional laser emission is achieved by optically pumping the fiber infiltrated with a dye-doped CLC.
- 2011-11-25
著者
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MORITAKE Hiroshi
Department of Electrical and Electronic Engineering, National Defense Academy
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Ozaki Ryotaro
Department Of Electrical And Electronic Engineering National Defense Academy
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Ozaki Ryotaro
Department of Electrical and Electronic Engineering, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
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Uno Nobuhiro
Department of Electrical and Electronic Engineering, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
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